Air piston for bubble generator



FIG. 1 is a perspective view of an air piston for bubble generator,showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view showing the bottom of the air piston forbubble generator;

FIG. 9 is a cross-sectional view thereof taken along line ‘9-9’ in FIG.6; and,

FIG. 10 is a perspective view showing the ‘9-9’ sectional view of theair piston for bubble generator in FIG. 9.

I claim, the ornamental design for an air piston for bubble generator,as shown and described.